Bonsai C3 Microcontroller Board

Bonsai C3 is a high performance drop-in replacement for the ProMicro. It is functionally equivalent to the Proton C. Bonsai C3 is an open source STM32F303CCT6 microcontroller board with: USB-C ARM-based microcontroller 72MHz 256kB program flash memory 48kB RAM Reset circuit on-board Audio speaker on-board STM32F303 includes a built-in USB bootloader, so all you need to start flashing firmware onto it is a USB-C cable. Because Bonsai C3 is an open source equivalent to Proton C, within QMK you can treat it exactly like you would a Proton C (such as using "CONVERT_TO=proton_c") Github link Why Choose Bonsai C3 over a ProMicro? Bonsai C3 offers a significant increase in performance compared to ProMicro. In addition to the metrics of higher pin count and higher operating frequency, the extra program memory on the microcontroller means you won't have to disable features to make your firmware fit within the limited 32kB space offered by a ProMicro. As QMK grows to be even more feature-r